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2023-09-25 - 10:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackaslot5s.osadl.org (updated Mon Sep 25, 2023 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811570,0rcu_preempt19-21ksoftirqd/100:24:241
811420,0rcu_preempt19-21ksoftirqd/122:47:151
811420,0rcu_preempt19-21ksoftirqd/122:47:151
811390,0rcu_preempt19-21ksoftirqd/123:35:021
811300,0rcu_preempt19-21ksoftirqd/123:12:081
811260,0rcu_preempt19-21ksoftirqd/123:20:211
811260,0rcu_preempt19-21ksoftirqd/100:18:241
811220,0rcu_preempt19-21ksoftirqd/123:38:141
811210,0rcu_preempt19-21ksoftirqd/100:08:141
811200,0rcu_preempt25349-21kworker/1:122:47:421
811200,0rcu_preempt19-21ksoftirqd/119:32:571
811190,0rcu_preempt19-21ksoftirqd/121:48:061
811160,0rcu_preempt19-21ksoftirqd/123:53:111
811110,0rcu_preempt19-21ksoftirqd/100:03:271
811080,0rcu_preempt19-21ksoftirqd/123:44:271
811080,0rcu_preempt19-21ksoftirqd/123:03:291
811060,0rcu_preempt19-21ksoftirqd/119:43:261
811040,0rcu_preempt19-21ksoftirqd/119:23:081
811020,0rcu_preempt19-21ksoftirqd/119:18:261
811000,0rcu_preempt19-21ksoftirqd/121:39:461
81990,0rcu_preempt19-21ksoftirqd/122:41:381
81980,0rcu_preempt19-21ksoftirqd/121:54:401
81970,0rcu_preempt19-21ksoftirqd/122:28:071
81970,0rcu_preempt19-21ksoftirqd/122:16:571
81970,0rcu_preempt19-21ksoftirqd/121:13:541
81940,0rcu_preempt19-21ksoftirqd/122:57:421
81940,0rcu_preempt19-21ksoftirqd/121:58:361
81890,0rcu_preempt54-21kswapd023:50:321
81880,0rcu_preempt19-21ksoftirqd/121:43:171
81860,0rcu_preempt19-21ksoftirqd/121:03:261
10050810,0irq/346-4848400111rcuc/023:36:510
81800,0rcu_preempt19-21ksoftirqd/122:18:211
81800,0rcu_preempt19-21ksoftirqd/120:13:271
81790,0rcu_preempt19-21ksoftirqd/123:23:221
81770,0rcu_preempt19-21ksoftirqd/119:58:111
81760,0rcu_preempt54-21kswapd022:03:081
81760,0rcu_preempt54-21kswapd021:17:581
10050750,0irq/346-4848400111rcuc/023:29:540
81740,0rcu_preempt54-21kswapd000:28:161
81740,0rcu_preempt19-21ksoftirqd/122:23:181
81740,0rcu_preempt19-21ksoftirqd/120:58:211
10050740,0irq/346-4848400111rcuc/023:08:180
10050730,0irq/346-4848400111rcuc/021:08:040
81700,0rcu_preempt19-21ksoftirqd/122:55:051
10050700,0irq/346-484840031333-1kworker/0:0H23:12:530
81680,0rcu_preempt19-21ksoftirqd/120:10:161
10050680,0irq/346-484840015325-1kworker/0:1H21:53:590
81670,0rcu_preempt25349-21kworker/1:100:12:561
1898099672,0cyclictest20693-21apt-get00:17:550
10050670,0irq/346-484840021624-1kworker/0:1H22:21:500
81650,0rcu_preempt19-21ksoftirqd/123:16:321
18980996516,0cyclictest0-21swapper/023:17:570
1898099649,0cyclictest3149-21dropbear19:57:590
1898099622,0cyclictest0-21swapper/000:33:250
81610,0rcu_preempt3-21ksoftirqd/023:56:200
1898099613,0cyclictest0-21swapper/022:35:130
1898099602,0cyclictest28566-21runrttasks19:36:440
1898099602,0cyclictest2680-21ping19:57:380
1898099602,0cyclictest2680-21ping19:57:380
1898099601,0cyclictest0-21swapper/022:40:150
10050600,0irq/346-484840054-21kswapd021:58:270
264402590,0chrt1898099cyclictest00:24:480
10050590,0irq/346-484840054-21kswapd021:13:150
1898099582,0cyclictest22131-21ping19:17:570
1898099582,0cyclictest1308-21lldpd20:38:170
1898099572,0cyclictest0-21swapper/021:06:320
1898099571,0cyclictest22131-21ping19:28:010
81560,0rcu_preempt3-21ksoftirqd/000:00:140
1898099569,0cyclictest0-21swapper/023:47:560
1898099564,0cyclictest13777-21ls00:08:120
10050560,0irq/346-484840054-21kswapd022:05:250
1898099558,0cyclictest0-21swapper/022:48:250
10050550,0irq/346-484840054-21kswapd021:30:450
81540,0rcu_preempt3-21ksoftirqd/020:24:510
1898099543,0cyclictest0-21swapper/019:23:340
10050540,0irq/346-484840054-21kswapd022:22:440
1898099532,0cyclictest0-21swapper/023:42:060
10050530,0irq/346-484840054-21kswapd021:43:490
10050530,0irq/346-484840011612-1kworker/1:2H23:28:011
1898099522,0cyclictest0-21swapper/019:38:240
1898099522,0cyclictest0-21swapper/019:38:240
10050520,0irq/346-484840054-21kswapd021:23:420
81510,0rcu_preempt3-21ksoftirqd/023:43:090
81510,0rcu_preempt24247-21kworker/0:021:17:410
1898099512,0cyclictest0-21swapper/019:17:390
10050510,0irq/346-484840054-21kswapd022:56:580
10050510,0irq/346-48484000-21swapper/100:36:211
81500,0rcu_preempt19-21ksoftirqd/123:58:351
10050500,0irq/346-484840054-21kswapd021:38:220
81490,0rcu_preempt5781-21kworker/0:120:14:300
81490,0rcu_preempt4167-1kworker/dying20:09:430
81490,0rcu_preempt3-21ksoftirqd/022:31:520
10050490,0irq/346-484840054-21kswapd021:35:360
10050490,0irq/346-48484000-21swapper/000:12:470
81480,0rcu_preempt32076-21apt-get22:32:571
81480,0rcu_preempt2680-21ping20:03:250
81480,0rcu_preempt2680-21ping20:03:250
81480,0rcu_preempt19-21ksoftirqd/121:33:011
10050480,0irq/346-484840054-21kswapd023:01:590
10050480,0irq/346-484840054-21kswapd000:28:290
10050480,0irq/346-48484000-21swapper/022:14:010
10050480,0irq/346-48484000-21swapper/000:07:290
81470,0rcu_preempt19-21ksoftirqd/121:23:171
10050470,0irq/346-484840017286-1kworker/0:0H22:43:140
10050470,0irq/346-484840017286-1kworker/0:0H22:43:140
10050470,0irq/346-48484000-21swapper/019:03:060
81460,0rcu_preempt3-21ksoftirqd/020:18:080
10050460,0irq/346-484840022131-21ping19:30:421
10050460,0irq/346-48484000-21swapper/022:07:570
81450,0rcu_preempt3-21ksoftirqd/020:33:060
81450,0rcu_preempt19-21ksoftirqd/121:28:181
81450,0rcu_preempt19-21ksoftirqd/120:48:101
81450,0rcu_preempt19-21ksoftirqd/119:48:151
81440,0rcu_preempt3-21ksoftirqd/021:47:450
81440,0rcu_preempt26628-21if_eth221:08:091
81440,0rcu_preempt19-21ksoftirqd/120:18:261
10050440,0irq/346-48484000-21swapper/023:23:480
10050440,0irq/346-48484000-21swapper/023:07:100
81430,0rcu_preempt3-21ksoftirqd/021:02:190
81430,0rcu_preempt22131-21ping19:39:361
81430,0rcu_preempt22131-21ping19:39:361
81430,0rcu_preempt10718-21apt-get22:07:561
10050430,0irq/346-484840054-21kswapd020:28:070
81420,0rcu_preempt3-21ksoftirqd/020:48:160
81420,0rcu_preempt3-21ksoftirqd/020:44:110
10050420,0irq/346-48484000-21swapper/019:48:090
10050420,0irq/346-48484000-21swapper/019:08:170
81410,0rcu_preempt19-21ksoftirqd/120:03:081
81410,0rcu_preempt19-21ksoftirqd/120:03:081
81410,0rcu_preempt19-21ksoftirqd/119:04:171
81400,0rcu_preempt8493-21kworker/1:219:53:131
81400,0rcu_preempt8493-21kworker/1:219:53:131
81400,0rcu_preempt19-21ksoftirqd/120:53:061
81400,0rcu_preempt19-21ksoftirqd/120:42:541
81400,0rcu_preempt19-21ksoftirqd/120:22:571
81390,0rcu_preempt54-21kswapd019:09:291
81390,0rcu_preempt3-21ksoftirqd/020:53:200
81380,0rcu_preempt3-21ksoftirqd/019:43:270
81380,0rcu_preempt19-21ksoftirqd/120:36:401
81380,0rcu_preempt16648-21meminfo20:38:091
81370,0rcu_preempt19-21ksoftirqd/120:27:551
81370,0rcu_preempt19-21ksoftirqd/119:13:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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